I. Put the verb in brackets in the correct passive form.
1. Her new book _____ (not publish) next month.
2. Milk _____ (use) to make butter and cheese.
3. The vase _____ (break) yesterday.
4. The exercise _____ (do) an hour ago.
5. A new restaurant _____ (open) next week
6. He _____ (invite) to the party yesterday.
7. The letter _____ (receive) yesterday.
8. Nick _____ (send) to London next week.
9. Many houses _____ (build) in our town every year.
10. This work _____ (do) tomorrow.​